Dc to dc converter current pump
CA 1294323 C · Owner: Combustion Electromagnetics, Inc. · Inventors: Ward, Michael A.V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A simplified current pump or SCP DC-DC power converter includes in series with a voltage power supply PS at least one electrical current controlling and/or limiting means ECC, energy storage and switching capacitor of capacitance CO, electrical transformer means T with at least one secondary winding TS and with a primary winding TP with a selected secondary winding TS to primary winding TP turns ratio N. A shunt switch SS is connected to ground with a shunt diode across it switch SS being connected from ground to a point P between the ECC and the capacitor CO. An output diode comprising at least one diode defined as the charging diode is connected between a high side point S of one …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 14, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.